Henry h



H. H. BEVIL. Windmill.

No. 226,265. Patented April 6,1880.

ATTORNEY MPETERS, PHOTOJJTHOGRAPHER, WASHINGTON D c.

kbllll N zii?fla $122 I WITNESSES HENRY H. BEVIL, OF INDIANAPOLIS,INDIANA.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 226,265, dated April 6,1880,

Application filed February 7, 1880. I

To all whom it may concern:

Be it known that I, HENRY H. BEVIL, of Indianapolis. in the county ofMarion and State of Indiana, have invented a new and valuableImprovement in Windmills; and I do hereby declare that the following isa full, clear, and exact description of the construction and operationof the same, reference being had to the annexed drawings, making a partof this specification, and to the letters and figures of referencemarked thereon.

Figure l of the drawings is a representation of a vertical centralsection of my wind-engine. Fig. 3 is a top view thereof; and Figs. 2, 4,and 5 are details. V

This invention has relation to improvements in windengines; and thenature of the invention consists in the arrangement and novelconstruction of the various devices used, as will be hereinafter morefully set forth.

In the annexed drawings, the letter A designates the tower of myimproved wind-engine, consisting of the converging posts a and the capa, to which the former are secured. This cap has a squared lower part,b, to the plane faces of which the beveled upper ends of the posts aresecured, and at the top of the said squared part the bearing-shoulders0, against which the said posts abut. This cap is hollow, and isprovided at a suitable distance above the shoulders c with an annularledge, c, having in its upper horizontal face an annular groove, (1, inwhich are arranged a number of balls, (1, the upper halves of which arereceived in a corresponding groove, 6, in the contiguous face of thelower annular branch, B, of the vane-stein A. Between the lower branch,13, and the upper branch, 0, of this vane V is a metallic hub, D, thatis passed over the spindle y, along with the said branches of the vane,the whole being confined in position by means of a nut, f, screwed uponthe end of the spindle, extending through the hub and branches, as shownin Fig. l of the draw lugs.

It will be seen that both the vane and the hub, to which are attachedthe bearings of the main shaft, have independent rotation around thestem of the cap above the ledge aforesaid.

The lower branch, B, of the vane is provided with a depending annularflange, f,

that excludes rain, sleet, snow, or other foreign matter from theguidegrooves of the ledge and branch B, and thus prevents the casualclogging of the balls aforesaid, the said flange extending below theledge, as shown in Fig.

l. The forks or branches of the vane V are secured to a wooden beam, A,by suitable bolts or other means, the blade being secured to the saidbeam in any workmanlike way.

Projecting outwardly from the hub is a horizontal platform or ledge, D,having a longitudinal slot, 8, parallel to the plane of the wheel and atright angles to its shaft D. This shaft has its bearings in and extendsacross the platform or ledge, and is provided at the said slot with acrank, g. Extending up from this platform is an upright, g, affording inits upper end a fulcrum to a verticallyvibrating lever, E, the weightend of which is connected by means of a pin to a rod, E, extending downthrough the cap and actuating the pump or other machine. The power endof this lever is connected by means of a'pitman, F, with the crank ofthe main shaft. This pitman is composed of three sections,'i z" 2', theformer vibrating in the same plane with the lever and at right angles tothe slot of the platform D, the second at right angles to the plane ofvibration of the said lever and in the length of the said slot, and thethird being a collar around the crank. A universal joint is thus formedin said pitman, that prevents all undue binding or friction and reducesit to a minimum. Extending out horizontally from the platform, at anobtuse angle to the length of its slot, is an arm, G, connected, bymeans of a rod, G, to a verticallyvibrating rod, H carrying on its lowerend the weighted governor-vane I, and fulcrumed on the stem of the mainvane, with its bearing-armj extending through it and provided with alever-handle, j. Secured to this ban; dle is a cord, H, passing over apulley, j, and extending down the tubular cap to the ground, by means ofwhich the governor may be operated by hand. a

In order to increase or lessen the throw, and thus increase or lessenthe power, of lever E, it is provided with several spaced perforations,as, in its power end for the attachment of the pitman.

The wheel D is of the following construction: It is composed of a hub orspider, H, keyed upon the main shaft, and composed of two sections, 0"r, clamped together in any suitable way and holding the inner ends ofthe wind blades H between them. These blades are of the usual taperingform, being widest at their outer ends, and are made of sheet metal ofsuitable thickness. They are each bent upon one of their edges backwardto form a stiffening-flange, z, and are braced together by theconcentriciron rings. The blades are arranged obliquely to the plane ofthe wheel, and the rings J J are bent in zigzags, one branch of eachzigzag lying fiat upon the said blades and the other extending acrossthe interval between. Thus the blades are secured each to the other.Upon the outer end of the shaft, projecting beyond the wheel, is a hub,K, from which radiate the braces L, secured at their outer ends rigidlyto the rings J J, thus forming a truss-brace and greatly stifiening thewheel.

M indicates a brake, consisting, essentially, of a tube, N, rigidlysecured to platform D at right angles thereto, a plungerrod, 0, arrangedin said tube and extending through both ends of the same, and a spring,19, holding the said rod back to its fullest extent. This rod is endwisemovable, and is provided on its working end with a bearing end, q, ofwood, iron, or rubber.

When the governor is forced back by the wind and the wheel thrown out ofthe same thereby the main vane remains stationary, the lower branch. B,of the vane-stem A engages the inner end of the plunger 0, while thebearin g end q thereof comes in contact with the hub of the wheel, andthe rotation of said wheel is arrested. As the gale decreases thegovernor falls, thus bringing the wheel more or less into the wind,according to the decrease or lull of the same and the extent of the fallof the governor. The brake is then taken off automatically.

As shown in Fig. 1, the up side of the branch B of the vane V has anannular groove, 2?, in which are placed a number of balls, and the underside of the hub D has a corresponding groove, 25, into which the upperhalves of said balls are received, thus forming a rolling bearing forthe hub that carries the wheel upon the branch B of the main vane.

By this device the hub, on which the weight of the main shaft andwind-wheel falls, has free independent movement of the vane, the latterbeing designed to change its position only when the wind shifts.

It will thus be seen that the hub and main vane have entirelyindependent motion around the same spindle.

What I claim as new, and desire to secure by Letters Patent, is

1. In a wind-engine, in combination with a wind-wheel and a main vanerotating independently around a spindle common to both, a weightedgovernor-blade vibrating on the main vane and connected to thewind-wheel, substantially as specified.

2. The combination, with the cap a, having the reduced spindle y, thevane stem A, having the branches B G, the tubular hub D, affordingbearings to the main shaft, received between said branches and passedtherewith over the said spindle, of the vibrating weighted governor-vaneI, journaled on the stem of the main vane, and a connecting-rod, G,uniting the said governor and hub, substantially as specified.

3. The brake for wind-engines, consisting of the open-ended tube N, theplunger-rod 0, moving endwise therein and projecting through it at eachend, and a spring,p, holding said rod back, substantially as specified.

4. The combination, with a turn-table, D, having a slotted platform, D,the main shaft D journaled in said platform across the slot, awind-wheel, and a walking-beam lever, E, of a pitnian, F, composed ofthe section '5, vibratin g in the plane of the lever, the section t",pivoted thereto and vibrating in the direction of the length of theslot, and a collar-section, i, pivoted to section 2', and encircling thewrist of the crank, substantially as specified.

5. The wind-wheel consisting of the sectional hub H,the radiating bladesH, clamped between said sections and obliquely arranged relative to theplane of the wheel, and the ringbraces J J, zigzagged to conform to theobliquity of the blades and the interval between them, substantially asspecified.

6. In a wind-engine, the combination, with a cap, a, having the spindley and guide-vane V, and a turn-table rotating on said spindle, of abrake, M, consisting of a tube, N, the plungerrod 0, endwise movabletherein and held against the wheel by the main vane, and a spring, 12,holding said rod back, substantially as specified.

7. The combination, with the cap a, having spindle y and ledge 0, withannular groove (1, and balls arranged in said groove, of the vane branchB, having groove 0 on its lower side, groove t upon its upper side, andflange f, and passed over said spindle, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

HENRY H. BEVIL.

Witnesses MILES BEVILL, JAMES M. CRAWFORD.

